Mini Fonkens -- best internal insulation?

[Tmctguer]

I was hoping someone who has built Fonken speaker cabinets could advise me on the best internal insulation material to use? I have seen posts about 12 mm felt, and someone recommended to me 1/2" Aurelex (with small triangular foam shapes rather than egg crate foam shape).

Thanks for your assistance.

Rick G.

 

[planet10]

Foam is not very good in this application. This is the cottom felt we use: Creative Sound - Product Details

Which Fonken were you intending on building? Note: there is no specific miniFonken. Fonken implies a Fostex driver, the generic name for this alignment is miniOnken -- no matter what driver.

dave

 

[Tmctguer]

Fostex 127e driver, using the FE127e Fonken v1.01a from Planet 10 Hifi.

 

[Destroyer OS]

I just stuffed some No-Rez into a horn pair of FE126en Fostex speakers (Horne Shoppe) and the result was kind of amazing. I highly recommend the stuff. If you have access to a bandsaw you can make it any shape you want with some precision. Then application is peel and stick; if you don't like it you can get it off with some force.

 

[planet10]

A set of the grandsire of them all, the Fonken Prime

dave